Scott W. Tinker

Director of the Bureau of Economic Geology; State Geologist of Texas; Geosciences Professor at The University of Texas at Austin

Jan Zalasiewicz

Polish Geologist, Lecturer in Geology at the University of Leicester

Raha Hakimdavar

Space & Environment Strategist, Earth Scientist & Founder & CEO of Zyon Space, a Climate-Tech Startup; Senior Advisor, Water, Climate, & Innovation at Georgetown University in Qatar

Guntur V. Subbarao

Crop Physiologist, Plant Science & Agronomy

G.V. Subbarao: Low nitrifying agricultural systems are crucial for ...

Aditi Mayer

Keynote Speaker on Sustainability, Fashion, Environment & Social Justice

Samuel Ramsey

Entomologist; Science Communicator; Founder & Director of the Ramsey Research Foundation

Bernadette Woods Placky

Emmy Award Winning Meteorologist & Director of Climate Central's Climate Matters Program

Elizabeth Cook

Leader & Consultant for the Future Power Grid: Sustainable + Resilient

Dianne Newman

Microbiologist; Newman Lab at the California Institute of Technology

Boyan Slat

Inventor, Entrepreneur & Founder of The Ocean Cleanup

Dr. Judith Curry

President & Co-Founder of Climate Forecast Applications Network

Sylvia Acevedo

Engineer, Rocket Scientist & Technology Leader; Inspirational Speaker; Corporate Director at Qualcomm; Former CEO of Girl Scouts USA

Peter B. de Menocal

President & Director of Woods Hole Oceanographic Institution; Professor, Department of Earth and Environmental Sciences Columbia University

Peter de Menocal on Ocean Solutions for a Warming Planet

Monica Grady

British Space Scientist; Professor of Planetary and Space Science at the Open University; Chancellor of Liverpool Hope University

Jeff Orlowski-Yang

Award-winning Filmmaker, Photographer, Entrepreneur & Climate Change Activist

Peter Cattermole

Former Principal Investigator with NASA's Planetary Geology and Physics Program, Specialising on the Study of Volcanoes on Mars and Venus

Bruno Sánchez-Andrade Nuño

PhD, Data Scientist at World Bank Group, Young Global Leader

Andrés Ruzo

Geothermal Scientist & Amazon Conservationist

Maria Banks

Post-Doctoral Fellow, Center for Earth and Planetary Studies, National Air and Space Museum, Smithsonian Institution

David Keith

Professor and Founding Faculty Director of the Climate Systems Engineering Initiative at the University of Chicago

A Case for Integrating Solar Geoengineering into Climate Policy

Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Nalini Nadkarni

Ecologist, Director of STEM Ambassador Program & Leading Expert in Canopy Research

Jeremy Jackson

Ritter Professor of Oceanography & Director of the Center for Marine Biodiversity and Conservation at the Scripps Institution of Oceanography

Peter Thiel

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

Louie Schwartzberg

Award-Winning Cinematographer, Director, Photographer and Filmmaker

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Story Musgrave, M.D.

Retired NASA Astronaut; Physician & Professor at Art Center College of Design

Peter Diamandis

Founder & Executive Chairman of the XPRIZE Foundation; Author; Named One of The World's 50 Greatest Leaders

Erin Brockovich

Consumer Advocate, Author, TV Host & Environmental Activist

Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor